If PCSX2 says "BIOS image is corrupted or missing," the Internet Archive link contained a bad dump. You need to search for a different "Rev 2" or "Verified" pack.
When you turn on a real PS2, the BIOS is the first code that runs. An emulator like PCSX2 cannot legally replicate this code from scratch without risking a lawsuit from Sony. Consequently, the emulator requires an exact dump of a real console's BIOS. internet archive playstation 2 bios link
You may find historical or educational references to PS2 BIOS on archive.org, but active, downloadable BIOS files are often removed due to DMCA takedown requests . Some uploads slip through, but they are typically short-lived. If PCSX2 says "BIOS image is corrupted or
While the Internet Archive operates as a non-profit library to "preserve the internet," it has faced legal challenges from publishers for hosting copyrighted material. Users are generally advised that the only strictly legal way to obtain a BIOS is to "dump" it from their own physical PS2 console. Tools like the PS BIOS Claim Tool on Retro Game Corps can also help users extract these files from official PS3 firmware updates for personal use. An emulator like PCSX2 cannot legally replicate this